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A show of hands: What JFET/MOSFET and Alps RK27 you want to buy?

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zhoufang

Member
Joined 2008
#1
I'm about to order more variety of Jfet/Mosfet for resale.
So what are the parts you wanted to get, but:
can't find anywhere
can't find them matched
can't get at reasonable cost​


A list of what I might consider are:

JFET
2SK170-BL/V
2SK369BL
2SK264-BL / 2SJ103-BL
2SK117-BL​
Most of these JFET should be around $30-40/100 unmatched, $45-60/100 matched. Smaller quantity will be at slightly higher price

MOSFET
2SK1530 / 2SJ201 about $12-18/pair matched
2SK1529 / 2SJ200 about $6-9/pair matched
2SK3497 / 2SJ618 about $6-9/pair matched​

Volume control - Alps RK27
stereo 10K 20K
quad (for balanced) 10k, 20k, 50k​

If there is sufficient demand, I'll be more than happy to bring them to you at reasonable price.
 
Last edited:
#6
Michi124 said:
Alps RK27 20K stereo for B1 buffer...
Click to expand...

We are thinking inline.
A pre-amp with:
jfet buffer -> volume control -> jfet buffer
is exactly where I feel the need for 10k or 20k pots.

The input buffer typically shows no sig. increase in distortion for down to 10K load, and the output buffer shows no sig. increase in distortion (due to gate capacitance) with up to 10K input.
This makes 10-20k pot most reasonable.
 
#9
These are certainly possible, you are the 2nd person to ask about this pair.
In fact this pair is not that much more expensive than IRFP240/9240, provided quantity in 1000 or more.
So if I see more interest , I will make them available.
In the mean time, I have to finish matching my Semisouth JFET and 2SK1530/2SJ201.
 
#11
Dear Cal Weldon,

I started this thread in Feb 3rd, and I can't move it to vendor.
Someone brought this dead thread up, I'm just trying to be polite by replying.
I'm sorry for the trouble.
Certainly I will stay away from swap, and start all threads from here.
And thank you for the movement! this is just what I wanted to do but can't.

Regards,
Zhou Fang
 
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